Gas-lighting device.



N0. 702,3". Patented lune l0, I902.

a. MEIER.

GAS LIGHTING DEVICE.

(Application file'd Jan. 11, 1902.)

(No Model.)

THE NORRIS PETERS co, PKOTCLUTHO WASHINGTON c.

NITED STATES PATENT ()FFICEf.

GEORG MEIER, OF BERLIN, GERMANY.

GAS-LIGHTINGIDEVICE.

SPECIFICATION forming part of Letters Patent No. 702,311, dated June 10, 1902.

Application filed January 11, 1902. Serial No. 89,344. (No model.)

To all whom it may concern:

Be it known that I, GEORG MEIER, engiuser, a subject of the Emperor of Germany, residing at 77 Potsdamerstrasse, Berlin, in the Empire of Germany, have invented a new and useful Gas-Lighting Device, ofwhich the following is a specification.

My invention relates to improvements in" ance with the variations of the pressure of the gas, or the gas may be admitted to both sides of a perforated diaphragm Working in a similar manner, the gas-passages leading to the chambers above and beneath the diaphragm being so arranged that the moment the pressure of the gas is raised an excess of the same acting upon one side of the diaphragm willresult and cause the valves to be reversed. In gas-lighting devices of the former kind gas will escape tothe atmosphere if there is a leak in the diaphragm. In"

the devices of the latter kind the slide-valves employed are apt to become choked and use less. These defects are to be avoided in the gas-lightin g device hereinafter described,and

illustrated in the accompanying drawings, in.

Figure 1 is a vertical longitudinal section of my gas-lighting device, in which the pipe leading upward to the chief burner is shown as being shut off, while the gas is taking its way through the small passage and the small pipe leading to the subsidiary or igniting burner. Fig. 2is a similar vertical longitudinal section, where the gas is shown as being turned on to the chief burner,

' Similarlettersrefertosimilarpartsthroughout the several views.

The gas-lighting device consists of the two partsA and B, joined together by screws D and holding between them a diaphragm 0, made of any suitable material. The lower eral passage J.

, burner.

part B is provided with a narrow central pipe L, reaching upward to a short distance beneath the diaphragm G, and with a wide lat- The area of the narrow pipe L may be regulated by a screw G. The upper part A is. provided with a short lateral passage J, forming a continuation of the passage J; furtlier, with a wide central pipe K, leading upward to the chief burner, and finally with anarrow passage M, leading from a similar short passage in the part B through a vertical pipe to the subsidiary or igniting burner. The area of the pipeKmay equally be regulatedby a screw H. In the chamber below the diaphragm C a leaf-spring E of a suitable shape is secured for bearing against the diaphragm, so as to press it against the lower edge of the pipe K, leading to the chief The tension of the springE may be regulated by the adjusting-screw F. If so preferred, the diaphragm 0 maybe provided with bolsters or valves 6 e for closing the pipes K and L, respectively.

The gas may take its course either through the wide lateral passage J, the upper cham her A, and the pipe K to the chief burner or through the narrow passage L, the lower chamber, and the narrow passage LWI to the subsidiary burner.

The device works as follows: When the pressure of the gas is normal, the gas will take its course as indicated by the arrows in Fig.

2-5. 6.,through the wide passage J to the upper chamber A-and press the diaphragm C and the leaf-spring E downward, whereby on the one side the narrow central pipe L is closed by the diaphragm or its bolster or valve e, so that no gas is admitted to the subsidiary burner, and on the other side the wide pipe K isiopened and the gas allowed to pass upward to the chief burner. If, however, the pressure of the gas is diminished, the diaphragm C will no longer be kept in its position described above, but pressed by the spring E against the lower end of the upper pipe K. The latter will thereby be closed and the gas shut off from the chief burner. The lower inlet and outlet orifices beneath and above the diaphragm or to regulate the areas of the pipes L and K by means of the adjustingscrews G and H, respectively, that any increase of the gas-pressure will exert its in tinence only in the upper chamber A, leading to ihe chief burner.

Having fully described my invention, 1 declare that what I claim, and desire to secure by Letters Patent, is

1. The combination, With a diaphragm, of a chamber arranged on each side of said diaphragm and inclosing same, the lower chamber having a gas-inlet and a narrow central pipe reaching therefrom to near the diaphragm, the upper chamber having a wide central pipe reaching inward to near the diaphragm and leading outward to the chief burner, said pipes separated by said diaphragm a wide passage leading from the gasinlet of said lower chamber to said upper chamber, a narrow pipe leading from said lower chamber to the subsidiary or igniting burner, and yielding means for pressing said diaphragm against the end of Ihe central pipe of said upper chamber at a low gas-pressu re and allowing said diaphragm to bear against ihe central pipe of said lower chamber at the normal gas-pressure, substantially as set forth.

2. In combination, a diaphragm having a chamber arranged on each side thereof, an outlet-pipe for one of said chambers, an inlet-pipe for the other of said chambers, a passage opening into the inlet-pipe of one chamber and opening into the other of said chambers for supplying gas thereto, a gas-outlet passage communicating with one chamber and extending partly around the other of said chambers, and valves carried by the diaphragm and engaging the said pipes for suitably closing them.

3. In combination, a casing, a diaphragm mounted therein and dividing the easing into an upper and a lower chamber, an outlet-pipe for the said upper chamber, an inlet-pipe for the said lower chamber, a passage communicating with the inlet-pipe of the lower chamher and opening into the upper chamber for supplying gas thereto, a gas-outlet passage for said lower chamber, and a pair of valves connected approximately centrally to the said diaphragm and adapted to engage With said pipes for suitably closing them.

4. In combination, a casing, a diaphragm mounted therein and dividing the casinginto an upper and a lower chamber, an outlet-pipe for said upper chamber, an inlet-pipe-for said lower chamber, a passage communicating with the inlet-pipe of the lower chamber and opening into the upper chamber for supplying gas thereto, an outlet-passage for said lower chamber, means extending in the inletpipe for regulating the passage of gas therethrough, and means extending in the said outlet-pipe for regulating the passage of gas therethrough.

In witness whereof I have hereunto set my hand in presence of two witnesses.

GEORG MEIER.. 

